We visited this marine station several times. It is convenient that you can buy tickets online through the website, and it is cheaper. It is located in a convenient location, there are 4 metro lines nearby, and the T1 tram line is also nearby
The ticket is something in the region of 400 rubles . If there are free places with tables, you can take food with you and eat with a view of the Bosphorus) it takes about an hour)